<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        .box {

            width: 100px;
            height: 3px;
            padding: 3px 0;
            border-top: 3px solid yellow;
            border-bottom: 3px solid yellow;
            display: inline-block;
            background-color: yellow;
            background-clip: content-box;
        }

        .box1 {
            border-top: 15px double yellowgreen;
            width: 100px;
            padding-top: 5px;
            border-bottom: 5px solid yellowgreen;
        }
        .box2{
            border-top:15px double yellowgreen;
            width: 100px;
            height: 5px;
            padding-top: 5px;
            background-clip: content-box;
            background-color: yellowgreen;
        }

        .div1 {
            display: inline-block;
            width: 20px;
            height: 20px;
            padding: 20px;
            border: 2px solid rgb(66, 16, 228);
            border-radius: 50%;
            background-clip: content-box;
            background-color: rgb(66, 16, 228);

        }
    </style>
</head>

<body>
    <!-- 三条杠 -->
    <div class="box">
    </div>
    <br>
    <hr>
    <br>
    <div class="box1">

    </div>
    <br>
    <hr>
    <br>
    <br>
    <div class="box2">

    </div>
    <br>
    <br>
    <!-- 圆点 -->
    <div class="div1">

    </div>
</body>

</html>